Apparatus for tipping and discharging railway wagons



Nov. 3, 1925.

'- F. G. MITCHELL APPARATUS FOR TIPPING AND DISCHARGING RAILWAY WAGONS Filed Feb. 20, 1925 2 Sheets-Sheet l W" WW Inventor Nov. 3, 1935'. 1,559,903

1 F. G. MITCHELL APPARATUS ron 'm'nua AND mscameme RAILWAY muons Filed Feb. 20', 1925 2 Sheets-Shoot 2 Inventor Wmwma J3 MQM Patented Nov. 3, 1925.

UNITED. STATES PATENT OFFICE.

FREDERICKVGILBERT MITCHELL, or HYDE PARK, LoNnom-ENGLnND.

APPARATUS FOR TIPPING AND DISCHARGING RAILWAY WAGONS.

Application filed February 20, 1925. Serial No.'10,548.

To all whom, 2'0 may concern.

Be it known that I, FREDERICK GILBERT MITCHELL, a subject of the King of Great Britain and Ireland, residing at Hyde Park, 5 in the county of London, England, have 1nvented Improvements in or Relating to Apparatus for Tipping and Discharging Railway. Wagons, of which the following is a specification. v a v This invention has reference to that type ofapparatus for tipping and discharging railway wagons which comprises a carrier on to or jinto which ,the wagon can be run and which can afterwards be partly rotated to tip the wagon sideways to discharge its contents over one of its sides, the wagon during this operation bearing against one side of the carrier and being held firmly on the rails of the carrier by sustaining means that act uponthe wagon in a direction to hold it against therails.

The present invention has reference to improvements in or relating to wagon tipping I apparatus of the kindreferredto and it has for its object to simplify the construction and improve the working of such apparatus. F or this purpose, in wagon tipping apparatus according thereto, the carrier com prises wagon supporting means, such as a platform, preferably pivoted, as atone side thereof, (hereinafter called for distinction the near side) to the lower portion of upwardly extending carryingmeans, conveniently in the form of 'upwardly'extending arms or members to which arefixed. ailon:

gitudinal laterally arranged wagon supporting member or chock. This memberorchock may be at the upperend of the arms and may be journalled at its two opposite ends extending levers that are journalled at-intermediate portions of their length tostationary standards or bearings and carry at their upper ends a longitudinal wagon sustaining beain; .Or the arms or members aforesaid may be journalled at; intermediate or extended portions oftheir length to the to the lower arms of a pair of upwardly general arrangement of the parts is or may be such that aatilting effort applied to the platform will first cause the latter to move about the lower ends of the carrier arms, until the wagon thereon encounters the lateral supporting member whereupon rotation will take place about the pivotal connection of the latter with the leversv until the sustaining beam is encountered by the wagon when the final rotation Willlbe that of the levers about their own'stationary bearings. v

In the accompanying illustrative drawings, Fig. 1 shows in side view and Fig, v2 in sectional end view, taken on the line 11-11 of Fig. 1, one construction of wagon tipping and discharging apparatus according to the invention. Fig. 3is a front view of part'of the apparatus showing a modified arrangement. Figs. 4, 5, and 6 are fragmentary end views showing other modificatrons. I o

In theexample shown in Figs. 1 and 2, a

is a wagon supporting platform pivoted at its near side, at m to lateral extensions 6 at the lower endsof twopairs ofupwardly extending arms or members I). The platform awith its carryingarms and members I) is supported, when in its normal and lower position, by bearings 0, 0 conveniently formed respectively by a channel iron bar and masonry arranged below the off and near sides of the platform, (I is a longitudinal laterally arranged Wagon supporting member or chock, (hereinafter called the lateral support). fixed to the upperends'of the arms Z2 and provided with cushioning devices or fenders d that may conveniently be of rope, e, e are upwardlyextending levers journalled at intermediate parts of their length, as by trunnions'e in stationary bearings f carried by standards 9' arranged at the opposite ends of the lateral support d,

To the lower arms of the" levers e are pivoted, at (1 the ends of the lateral support 03 and to the upper ends of such leversare 0011- nected a, longitudinal Wagon sustaining beam 71,, carrying. bearing blocks 71}, which may be of cushioning. material, to bear against the end ;walls of a wagon. To the lower arms of each lever e is attached a balance weight Upon bearings 2', at the near side of the wagonsupporting platform i a and centrally of the lengththereof, is pivoted, as by means of trunnions 7' a member y having a cam-like surface j adapted to receive a flexible connection, as, for instance a rope is, which is attached to the said member at a suitable distance from the pivotal connection j for the latter, say at the point m.

V The flexible connection 72 is led to a winding drum n driven by a motor, as for example an electric motor 0, through reducing gearing at 7". The motion of the cam-like member y'is transmitted to the carrier platform a by a strut or pair of struts s that is pivoted at its ends both to the platform a and to the The arrangement is such that when a wagon A is run on to the carrier platform a and the rope is 1s wound up by the motor driven winding drum n, the platform will,

by the turning of the member j, first be caused by the struts s to turn about the pivotal connections a between it and the arms '6 of the lateral support (Z, the wagon and platform being thereby slightly tilted and the wagon caused to bear against the said lateral support. Thereafter the platform, wagon and lateral support will move about thepivots at al which connect the said lateral support to the levers e, 6, until the end walls of the wagon, at intermediate portions thereof, come into contact with the cushioning blocks 72, carried by the sustaining beam h. Uponfurther rotation of the platform at, arms 6 and lateral support (5' by the member j, the said levers e, c with all the other associated parts will, as a whole. be caused to turn in the direction of the arrow or; about their pivotal connections 6 with the stationary bearings f, the standards g then supporting nearly the whole of the weight' of the' moving parts. During the continued moving ofthe various parts as a whole, to tip the wagon A. sideways and discharge its contents, the wagon will be held firmly on the platform a by the sustaining beam h under the action of the weight of the platform (1, arms 6 and lateral support (Z on the lower arms of the levers e, and a portion of the weight of the wagon itself, assisted bythe weights which, as they are raised, will cause a gradually increasing pressure to be exerted by the sustaining beam on the wagon during the discharge of the wagon.

Upon reversing the direction of motion of the winding drum n,'the platform and wagon will, under the action of gravity, be tilted backward and be. returned to their normal lowered position, under the control of the rope is, drum n and motor 0.

From this example it will be evident that various modifications may be adopted. For instance, by shortening the lateral support (Z, or by lengthening the platform a, the arms 6 may be pivoted to the lower arms of the levers 6 instead of the lateral support, as shown at b in Fig. 3. Or again, in lieu of using a flexible, connection is and winding drum n, the platform a might, as shown in Fig. 4, be connected by astrut or struts s to a toothed quadrant. t employedin lieu of the cam shaped member jhereinbefore re fer-red to, the said quadrant being driven by the pinion a of suitable motor operated gearing 10 Similarly, in lieu of a strut or struts s pivoted to theplatform a and operating cam member y", toothed quadrant t or equivalent, as hereinbefore described, the

motion of the latter may, as shown in Fig.

5, be transmitted to the platform a: through a sliding coni1ection,-suoh for example as a roll-er or ball 42 on one of the parts, say the cam membery', coacting with a curved or appropriately shapedraoe orseat w on the other part, say the platform (a The platform a may, asshown inFigs. 1 and 2, be provided with a pair of carry ing rails I for a wagon -A, asheretofore usual, and be supported in its normal lowered position by arranging its underside, or longitudinal girders fixed thereto, 'to rest upon stationary abutments-o and 0 Or the OE side carrying rail 1 (Figs. 1 and 2) on the wagon platform"may, as shown in Fig. 6, be omitted anda rail I be fixed on the ground adjacent to theoff side of the said platform, Thelatter may then be equipped with a, near side rail 1 and an off side longitudinalinember 4 carried by a pairof arms 5 at a height'to engage the underside of the axles 6 of a wagon A initially resting partly'on the rail-1 on the carrier and partly on the rail 1 at the OE side of the carrier.- [A longitudinal guard rail 7 carriedby the arms 5-, may be employed to prevent the near wheels of a wagon A leaving the-near raill on the carrier a during the raising and tilting operation ofthe latter. In this case, the platform can be'reduced very-much in width and the pressure of a strut orstruts such as 8' (Figs 1 and 2) or equivalent, be applied to the 'longitudinal member t. In all cases, stops may be employed-where nee-essary toresist undesired movement of any ofthe various parts, and similarly, balance weights may be disposed at and where desired for the purpose of assisting the movement of parts:

The carrier a, .7) may, as shown in Figs. 1 and 2, be supported, above a pit 8' into which the lower end of the cam-shaped operating member j, or equivalent gear may depend, and in which, as shown, may bearranged the winding engine 0 and drum'n used for operating the apparatus.

What I claim is 1. Apparatus for tipping and discharging railway wagons comprising a wagon support, upwardly extending carrying means for said support, a lateral wagon support connected to the carrying means above the wagon support, stationary hearing-gupwardly extending levers pivoted to said bearings and to the lower arms of which the combined carrying means and lateral support are pivoted, alongitudinal wagon sustaining beam connected to the upper arms of said levers and turning means mounted independently of said wagon support and its carrying means and adapted to act upon and tilt these parts about their pivotal connections with the levers and the levers with their associated'parts about the pivots of said levers. V

2. Apparatus for tipping and discharging railway wagons, comprising a wagon support, upwardly extending carrying means to the lower portion of which one side of saic wagon support is jointed, a lateral longitudinal wagon support connected to the upper portion of said upwardly extending carrying means, stationary supporting means,

a pair of upwardly extending levers pivoted to said stationary supporting means and to the lower arms of which the combined upwardly extending carrying means and lateral wagon support are pivotally connected, a longitudinal wagon sustaining beam connected to the upper arms of said levers, and operating means whereby the wagon support can first be tilted about its pivotal connection with the upwardly extending carrying means to bring a wagon on the wagon support against said lateral support, the combine-d carrying means and lateral support with wagon support and wagon afterwards tilted about their pivotal connection with said levers and said levers finally tilted about their pivotal connections with said stationary supporting means and the sustaining beam thereof caused to bear against the wagon during the discharge thereof, the centre of gravity of the movable parts being to that side of a vertical plane passing through the pivots of the levers that is opposite to the side towards which the wagon is discharged.

8. Apparatus for tipping and discharging railway wagons, comprising a wagon support, carrying means to which one side of said wagon support is jointed, a lateral wagon support connected to said carrying means, stationary bearings arranged to one side of said wagon support, a pair of upwardly extending levers pivoted to said bearings and to the lowerarms of which the combined carrying means and lateral support are pivoted, a longitudinal sustaining beam connected to the upper arms of said levers, rotary operating means mounted to turn about a horizontal axis at a lower level than the axis about which said levers turn and connected to the pivoted wagon support, and motor driven means for actuating and controlling said operating means.

4. Apparatus for tipping and discharging railway wagons, comprising a wagon support, upwardly extending carrying means to the lower portion of which one side of said wagon support is jointed, a lateral wagon. support connected to the upper portion of said carrying means, stationary-supporting means, a pair of upwardly extending levers pivoted to said stationary supporting means and to the lower arms of which the combined carrying means and lateral support are pivoted, a longitudinal sustaining beam connected to the upper arms of said levers, additional stationary supporting-means, a rotary operating device j ournalled to the last mentioned supporting means and connected to the pivoted wagon support and motor driven means for causing said rotary operating means to turn about its axis and tilt said wagon support and associated parts substantially in the manner set forth. Y

5. Apparatus for tipping and discharging railway -wagons, comprising a platform adapted to support a wagon, upwardly extending members having lower lateral extensions to which one side of said Wagon ing means arranged to one side and intermediate of the'length of said platform, a rotary turning device journalled to said stationary supporting-means and connected to the underside of said platform between its ends, and motor driven means for effecting a rotation of said rotary device.

6. Apparatus according to claim 5, wherein the rotary turning means is connected 'to the wagon platform by a strut.

7. Apparatus for tipping and discharging railway wagons, comprising a platform adapted to support a wagon, upwardly. extending members having lower lateral extensions to which one side of said platform is jointed, a lateral wagon support connected to the upper portions of said members,

means for supporting said wagon support and members in their normal lower positions, stationary supports at the opposite ends of said lateral support, a pair of upwardly extending levers pivoted to said supports and having weighted lower arms, said lateral support being pivotally connected to the lower arms of said levers, a longitudinal sustaining beam connected to the upper arms of said levers, stationary bearings arranged at one side of said wagon support and intermediate of the ends thereof, a rotary device journalled in said bearings and connected to the lower side of said wagonsupport and motor driven means for turning said rotary device and tilting said platform and associated movable parts alternately in opposite directions about horizontal axes, said platformbeing arranged above a pit housing the motor driven means and part of said rotary device. v

8. Apparatus for tipping and-dischargin-g railway wagons comprising a platform adapted to support a wagon, upwardly extending members having lower lateral extensionsto which one side of said platform is jointed, a lateral wagon support connected to the upper portions of said members, means for supporting said wagon support and members in their normal lower positions, stationary supports at the opposite ends of said lateral support, a pair of upwardly extending levers pivoted to said supports and having weighted lower arms, said lateral support being pivotally connected to the lower arms of said levers, a longitudinal sustaining beam connected to the upper arms of said levers, stationary bearings arranged at one side of said wagon support and intermediate of the ends thereof, a rotary member pivoted to said stationary bearings, connected to said pivoted wagon support, and having a \c-am-like surface, a flexible connector secured to said rotary member and extending around the surface thereof, a winding drum for said flexible connector and a motor for driving; said drum.

Signed at London, England, this tenth day of February, 1925.,

FREDERICK GILBERT MITCHELL. 

